SAT Subject Test Chemistry,10 edition

36 . D The most polar bond is the one that has the greatest difference in the electronegativities of the two ...

The oxidation state of bromine in the bromide reactant is –1, and the oxidation state of the bromine in the brom ...

Solving these two problems results in a mass number of 1 and a nuclear charge of 0; this set of values c ...

49 . B The atomic weight of an element depends on the number of protons and neutrons in its nucleus; those num ...

5.5 moles 54 . C Total molecular weight: 108 + 28 + 6 = 142 Percent Ag: (108/142) × 100% = 76.1% 55 . ...

58 . C Ionic solutions will conduct electricity. The NaCl will dissociate to become Na+ and Cl–. The sam ...

contain the anion, or conjugate base, of the acid. 65 . B If the temperature of an exothermic reaction is incr ...

oxygen. To find the ratio between these two elements in the compound, divide the mass of arsenic by the atomi ...

Part Three CHEMISTRY REVIEW ...

Chapter 3 Atomic Structure The atom is the basic building block of matter, representing the smallest unit ...

Subatomic Particles There are three kinds of particles found in a typical atom: protons and neutrons, which ...

Even though the number of protons must be the same for all atoms of an element, the number of neutrons, a ...

DON’T MIX THESE UP ON TEST DAY Atomic number = number of protons Mass number = number of protons and neutr ...

Atomic Weights and Isotopes To report the mass of something, one generally gives a number together with a ...

BASIC CONCEPT 1 mole = 6.022 × 10^23 = Avogadro’s number As we have seen, Avogadro’s number serves as a ...

mass of 40 amu and accounts for 60% of naturally occurring Q. The atomic mass of isotope B is 44 amu and a ...

Bohr’s Model of the Hydrogen Atom In his model of the structure of the hydrogen atom, Bohr postulated t ...

spectrum is the same: The atom gives off energy as an electron goes from a higher to a lower ener ...

Quantum Mechanical Model of Atoms While the concepts put forth by Bohr offered a reasonable explanation for ...

4 quantum numbers: n, l, ml, ms Principal Quantum Number The first quantum number is commonly known as the pr ...